Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER

Autores
Michell, R. G.; Janches, D.; Samara, M.; Hormaechea, Jose Luis; Brunini, Claudio Antonio; Bibbo, Isabel
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present simultaneous optical and radar observations of meteors observed with the Southern Argentine Agile MEteor Radar (SAAMER). Although such observations were performed in the past using High Power and Large Aperture radars, the focus here is on meteors that produced head echoes that can be detected by a significantly less sensitive but more accessible radar system. An observational campaign was conducted in August of 2011, where an optical imager was operated near the radar site in Rio Grande, Tierra del Fuego, Argentina. Six head echo events out of 150 total detections were identified where simultaneous optical meteors could also be clearly seen within the main radar beam. The location of the meteors derived from the radar interferometry agreed very well with the optical location, verifying the accuracy of the radar interferometry technique. The meteor speeds and origin directions calculated from the radar data were accurate—compared with the optics—for the 2 meteors that had radar signal-to-noise ratios above 2.5. The optical meteors that produced the head echoes had horizontal velocities in the range of 29–91 km/s. These comparisons with optical observations improve the accuracy of the radar detection and analysis techniques, such that, when applied over longer periods of time, will improve the statistics of southern hemisphere meteor observations. Mass estimates were derived using both the optical and radar data and the resulting masses agreed well with each other. All were within an order of magnitude and in most cases, the agreement was within a factor of two.
Fil: Michell, R. G.. University Of Maryland; Estados Unidos. National Aeronautics And Space Administration; Estados Unidos
Fil: Janches, D.. National Aeronautics And Space Administration; Estados Unidos
Fil: Samara, M.. National Aeronautics And Space Administration; Estados Unidos
Fil: Hormaechea, Jose Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Brunini, Claudio Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Bibbo, Isabel. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Materia
Meteor
Optical
Head Echo
Metero Mass
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/12778

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spelling Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMERMichell, R. G.Janches, D.Samara, M.Hormaechea, Jose LuisBrunini, Claudio AntonioBibbo, IsabelMeteorOpticalHead EchoMetero Masshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present simultaneous optical and radar observations of meteors observed with the Southern Argentine Agile MEteor Radar (SAAMER). Although such observations were performed in the past using High Power and Large Aperture radars, the focus here is on meteors that produced head echoes that can be detected by a significantly less sensitive but more accessible radar system. An observational campaign was conducted in August of 2011, where an optical imager was operated near the radar site in Rio Grande, Tierra del Fuego, Argentina. Six head echo events out of 150 total detections were identified where simultaneous optical meteors could also be clearly seen within the main radar beam. The location of the meteors derived from the radar interferometry agreed very well with the optical location, verifying the accuracy of the radar interferometry technique. The meteor speeds and origin directions calculated from the radar data were accurate—compared with the optics—for the 2 meteors that had radar signal-to-noise ratios above 2.5. The optical meteors that produced the head echoes had horizontal velocities in the range of 29–91 km/s. These comparisons with optical observations improve the accuracy of the radar detection and analysis techniques, such that, when applied over longer periods of time, will improve the statistics of southern hemisphere meteor observations. Mass estimates were derived using both the optical and radar data and the resulting masses agreed well with each other. All were within an order of magnitude and in most cases, the agreement was within a factor of two.Fil: Michell, R. G.. University Of Maryland; Estados Unidos. National Aeronautics And Space Administration; Estados UnidosFil: Janches, D.. National Aeronautics And Space Administration; Estados UnidosFil: Samara, M.. National Aeronautics And Space Administration; Estados UnidosFil: Hormaechea, Jose Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Brunini, Claudio Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Bibbo, Isabel. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaElsevier2015-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/12778Michell, R. G.; Janches, D.; Samara, M.; Hormaechea, Jose Luis; Brunini, Claudio Antonio; et al.; Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER; Elsevier; Planetary and Space Science; 118; 12-2015; 95-1010032-0633enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032063315001336info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pss.2015.04.018info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:15:55Zoai:ri.conicet.gov.ar:11336/12778instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:15:55.626CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER
title Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER
spellingShingle Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER
Michell, R. G.
Meteor
Optical
Head Echo
Metero Mass
title_short Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER
title_full Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER
title_fullStr Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER
title_full_unstemmed Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER
title_sort Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER
dc.creator.none.fl_str_mv Michell, R. G.
Janches, D.
Samara, M.
Hormaechea, Jose Luis
Brunini, Claudio Antonio
Bibbo, Isabel
author Michell, R. G.
author_facet Michell, R. G.
Janches, D.
Samara, M.
Hormaechea, Jose Luis
Brunini, Claudio Antonio
Bibbo, Isabel
author_role author
author2 Janches, D.
Samara, M.
Hormaechea, Jose Luis
Brunini, Claudio Antonio
Bibbo, Isabel
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Meteor
Optical
Head Echo
Metero Mass
topic Meteor
Optical
Head Echo
Metero Mass
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present simultaneous optical and radar observations of meteors observed with the Southern Argentine Agile MEteor Radar (SAAMER). Although such observations were performed in the past using High Power and Large Aperture radars, the focus here is on meteors that produced head echoes that can be detected by a significantly less sensitive but more accessible radar system. An observational campaign was conducted in August of 2011, where an optical imager was operated near the radar site in Rio Grande, Tierra del Fuego, Argentina. Six head echo events out of 150 total detections were identified where simultaneous optical meteors could also be clearly seen within the main radar beam. The location of the meteors derived from the radar interferometry agreed very well with the optical location, verifying the accuracy of the radar interferometry technique. The meteor speeds and origin directions calculated from the radar data were accurate—compared with the optics—for the 2 meteors that had radar signal-to-noise ratios above 2.5. The optical meteors that produced the head echoes had horizontal velocities in the range of 29–91 km/s. These comparisons with optical observations improve the accuracy of the radar detection and analysis techniques, such that, when applied over longer periods of time, will improve the statistics of southern hemisphere meteor observations. Mass estimates were derived using both the optical and radar data and the resulting masses agreed well with each other. All were within an order of magnitude and in most cases, the agreement was within a factor of two.
Fil: Michell, R. G.. University Of Maryland; Estados Unidos. National Aeronautics And Space Administration; Estados Unidos
Fil: Janches, D.. National Aeronautics And Space Administration; Estados Unidos
Fil: Samara, M.. National Aeronautics And Space Administration; Estados Unidos
Fil: Hormaechea, Jose Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Brunini, Claudio Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Bibbo, Isabel. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
description We present simultaneous optical and radar observations of meteors observed with the Southern Argentine Agile MEteor Radar (SAAMER). Although such observations were performed in the past using High Power and Large Aperture radars, the focus here is on meteors that produced head echoes that can be detected by a significantly less sensitive but more accessible radar system. An observational campaign was conducted in August of 2011, where an optical imager was operated near the radar site in Rio Grande, Tierra del Fuego, Argentina. Six head echo events out of 150 total detections were identified where simultaneous optical meteors could also be clearly seen within the main radar beam. The location of the meteors derived from the radar interferometry agreed very well with the optical location, verifying the accuracy of the radar interferometry technique. The meteor speeds and origin directions calculated from the radar data were accurate—compared with the optics—for the 2 meteors that had radar signal-to-noise ratios above 2.5. The optical meteors that produced the head echoes had horizontal velocities in the range of 29–91 km/s. These comparisons with optical observations improve the accuracy of the radar detection and analysis techniques, such that, when applied over longer periods of time, will improve the statistics of southern hemisphere meteor observations. Mass estimates were derived using both the optical and radar data and the resulting masses agreed well with each other. All were within an order of magnitude and in most cases, the agreement was within a factor of two.
publishDate 2015
dc.date.none.fl_str_mv 2015-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/12778
Michell, R. G.; Janches, D.; Samara, M.; Hormaechea, Jose Luis; Brunini, Claudio Antonio; et al.; Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER; Elsevier; Planetary and Space Science; 118; 12-2015; 95-101
0032-0633
url http://hdl.handle.net/11336/12778
identifier_str_mv Michell, R. G.; Janches, D.; Samara, M.; Hormaechea, Jose Luis; Brunini, Claudio Antonio; et al.; Simultaneous optical and radar observations of meteor head-echoes utilizing SAAMER; Elsevier; Planetary and Space Science; 118; 12-2015; 95-101
0032-0633
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032063315001336
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pss.2015.04.018
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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